National Museum of Nuclear Science & History
Ennis Peters was a staff worker at Los Alamos during the Manhattan Project.
Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
L. G. Tanner worked for the United States Engineer District Office.
O. S. Loud worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Tony Quintana was a staff worker at Los Alamos during the Manhattan Project.